Home / 4,686.40-7,030.20-1,725.04

Finding the Fourth Proportional to 4,686.40, 7,030.20 and 1,725.04

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Solution

The fourth proportional to 4,686.40, 7,030.20 and 1,725.04 is: 2,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.40 : 7,030.20 = 1,725.04 : x
  2. Step 2: Convert to fraction form
    4,686.40/7,030.20 = 1,725.04/x
  3. Step 3: Cross multiply
    4,686.40x = 7,030.20 × 1,725.04
  4. Step 4: Simplify right side
    4,686.40x = 12,127,376.21
  5. Step 5: Solve for x
    x = 12,127,376.21/4,686.40
  6. Step 6: Final answer
    x = 2,587.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.